Allow me to chime into this discussion and provide more information regarding the Administrator Password in the QuickBooks Desktop (QBDT), MaxHeadroom.

In the recent updates of QuickBooks Desktop (QBDT), you have to enter an admin password when someone wants to access your company files, as stated by my colleague above, for security purposes.

Since you have a user who's on a terminal server,  I suggest creating a User Role for them and any other users who need access to company files. This way, there's no need to share your admin credentials, and everyone can still access the necessary files.

Here's how you add a user role in your QBDT: 

1. Go to the Company menu, then choose Users.
2. Select Set Up Users and Roles.
3. On the User List tab, click New.
4. Enter a username and an optional password.
5. In the Available Roles section. Select the roles you want to assign to your user, then click Add.
6. Once done, click OK.

You can gain more understanding of how to create roles in QuickBooks Desktop by reading this article: Create and manage users and roles in QuickBooks Desktop.

In addition, read this article to know more about customizing user roles and the user's limitations in QBDT: QuickBooks Desktop users and restrictions.

Return to this thread if you need more help with the administrator password in QBDT, MaxHeadroom. I'll be here to answer them as soon as I can.